Storage Technology Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing storage and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

  • D

    DVD-Audio (DVD-A)

    DVD-Audio (DVD-A) is a Digital Versatile Disc (DVD) format, developed by Panasonic, that is specifically designed to hold audio data, and particularly, high-quality music.

  • DVD-RAM

    DVD-RAM is a DVD(optical disc) technology for high-capacity data storage for computers.

  • E

    Dell EMC Atmos

    Dell EMC Atmos is an object-based cloud storage platform that was released in November 2008 by EMC.

  • EDO RAM (extended data output RAM)

    EDO (extended data output) RAM is a type of random access memory (RAM) chip that improves the time to read from memory on faster microprocessors such as the Intel Pentium.

  • email archiving

    Email archiving (also spelled e-mail archiving) is a systematic approach to saving and protecting the data contained in email messages to enable fast retrieval.

  • eMMC (embedded MultiMediaCard)

    An embedded MultiMediaCard (eMMC) is a small storage device made up of NAND flash memory and a simple storage controller.

  • enhanced CD (E-CD)

    Enhanced CD (E-CD) is a compact disc (CD) format that enables discs to be played on either a CD player or a multimedia-capable device, such as a CD-i player, or a DVD-ROM, or CD-ROM drive, where added material can be displayed.

  • enterprise cloud storage

    Enterprise cloud storage is public cloud storage purchased for a large organization. Enterprise cloud storage can be contrasted with consumer cloud storage, which is often free or purchased at a low price for an individual user's needs.

  • enterprise MLC (eMLC)

    Enterprise MLC (eMLC) is a type of MLC flash that has been enhanced to accommodate more write cycles than consumer-grade MLC flash offers.

  • enterprise SSD (enterprise solid-state drive)

    An enterprise SSD (also known as an enterprise solid-state drive or enterprise solid-state disk) stores data persistently or caches data temporarily in nonvolatile memory and generally provides higher performance and greater endurance than consumer or client SSDs.

  • enterprise storage

    Enterprise storage is a centralized repository for business information that provides common data management, protection and data sharing functions through connections to computer systems.

  • erasure coding

    Erasure coding (EC) is a method of data protection in which data is broken into fragments, expanded and encoded with redundant data pieces and stored across a set of different locations or storage media.

  • exabyte (EB)

    An exabyte (EB) is a large unit of computer data storage, two to the sixtieth power bytes.

  • exbibyte (EiB)

    An exbibyte (EiB) is a unit used to measure data capacity.

  • Express Bay

    Express Bay is an externally accessible storage slot that is designed to accept a high-performance PCI Express (PCIe) solid-state drive (SSD),

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